From 5d3ee7d346995d0b3b616e7f9e5774256be8f2e0 Mon Sep 17 00:00:00 2001
From: Hubert Denkmair <hubert@denkmair.de>
Date: Fri, 22 Apr 2016 10:03:41 +0200
Subject: [PATCH] adjust dfu descriptor to match the stm32 one

---
 src/usbd_gs_can.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/usbd_gs_can.c b/src/usbd_gs_can.c
index 8c0a7a2..54af07f 100644
--- a/src/usbd_gs_can.c
+++ b/src/usbd_gs_can.c
@@ -160,7 +160,7 @@ __ALIGN_BEGIN uint8_t USBD_GS_CAN_CfgDesc[USB_CAN_CONFIG_DESC_SIZ] __ALIGN_END =
 	0x00,                             /* bNumEndpoints */
 	0xFE,                             /* bInterfaceClass: Vendor Specific*/
 	0x01,                             /* bInterfaceSubClass */
-	0x01,                             /* bInterfaceProtocol */
+	0x02,                             /* bInterfaceProtocol */
 	DFU_INTERFACE_STR_INDEX,          /* iInterface */
 
 	/*---------------------------------------------------------------------------*/
@@ -168,10 +168,10 @@ __ALIGN_BEGIN uint8_t USBD_GS_CAN_CfgDesc[USB_CAN_CONFIG_DESC_SIZ] __ALIGN_END =
 	/*---------------------------------------------------------------------------*/
 	0x09,                             /* bLength */
 	0x21,                             /* bDescriptorType: DFU FUNCTIONAL */
-	0x0F,                             /* bmAttributes: all features set */
-	0xFF, 0xFF,                       /* wDetachTimeOut */
-	0x00, 0xFF,                       /* wTransferSize */
-	0x01, 0x01,                       /* bcdDFUVersion: 1.1 */
+	0x0B,                             /* bmAttributes: detach, upload, download */
+	0xFF, 0x00,                       /* wDetachTimeOut */
+	0x00, 0x08,                       /* wTransferSize */
+	0x1a, 0x01,                       /* bcdDFUVersion: 1.1a */
 
 };